Add riscv64 <ucontext.h>.
Signed-off-by: Mao Han <han_mao@linux.alibaba.com>
Signed-off-by: Xia Lifang <lifang_xia@linux.alibaba.com>
Signed-off-by: Chen Guoyin <chenguoyin.cgy@linux.alibaba.com>
Signed-off-by: Wang Chen <wangchen20@iscas.ac.cn>
Signed-off-by: Lu Xufan <luxufan@iscas.ac.cn>
Test: treehugger
Change-Id: Ieb7cb71cd735b6629d507efb0a5e35ee653e4d20
diff --git a/libc/include/sys/ucontext.h b/libc/include/sys/ucontext.h
index 9c5801f..b000914 100644
--- a/libc/include/sys/ucontext.h
+++ b/libc/include/sys/ucontext.h
@@ -26,8 +26,7 @@
* SUCH DAMAGE.
*/
-#ifndef _SYS_UCONTEXT_H_
-#define _SYS_UCONTEXT_H_
+#pragma once
#include <sys/cdefs.h>
@@ -313,8 +312,55 @@
struct _libc_fpstate __fpregs_mem;
} ucontext_t;
+#elif defined(__riscv)
+
+#define NGREG 32
+
+#define REG_PC 0
+#define REG_RA 1
+#define REG_SP 2
+#define REG_TP 4
+
+typedef unsigned long __riscv_mc_gp_state[NGREG];
+
+typedef unsigned long greg_t;
+typedef unsigned long gregset_t[NGREG];
+typedef union __riscv_mc_fp_state fpregset_t;
+
+/* These match the kernel <asm/ptrace.h> types but with different names. */
+
+struct __riscv_mc_f_ext_state {
+ uint32_t __f[32];
+ uint32_t __fcsr;
+};
+
+struct __riscv_mc_d_ext_state {
+ uint64_t __f[32];
+ uint32_t __fcsr;
+};
+
+struct __riscv_mc_q_ext_state {
+ uint64_t __f[64] __attribute__((__aligned__(16)));
+ uint32_t __fcsr;
+ uint32_t __reserved[3];
+};
+
+union __riscv_mc_fp_state {
+ struct __riscv_mc_f_ext_state __f;
+ struct __riscv_mc_d_ext_state __d;
+ struct __riscv_mc_q_ext_state __q;
+};
+
+/* This matches the kernel <asm/sigcontext.h> but with different names. */
+
+typedef struct mcontext_t {
+ __riscv_mc_gp_state __gregs;
+ union __riscv_mc_fp_state __fpregs;
+} mcontext_t;
+
+#include <asm/ucontext.h>
+typedef struct ucontext ucontext_t;
+
#endif
__END_DECLS
-
-#endif /* _SYS_UCONTEXT_H_ */